One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,12,7,11,6,10)(3,13,16,25,17,8,15,24)(4,18,21,28,22,27,20,9)(14,26,19,29,30,32,31,23)(1,3,6,16,7,17,5,15)(2,8,10,24,11,13,12,25)(4,19,20,30,22,31,21,14)(9,26,27,29,28,32,18,23)(1,4,5,21,7,22,6,20)(2,9,12,18,11,28,10,27)(3,14,16,19,17,30,15,31)(8,23,24,26,13,29,25,32)(2,10,11,12)(8,24,13,25)(9,27,28,18)(23,26,29,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.